Login to Dashboard and you will see this logo at the top nav bar. (This is to change the language on the Admin Dashboard to retain it in English even if we are editing Chinese pages.)

Hover your cursor there then click the language you need. (Select Switch to English if you want the Dashboard to be in English) You should see something like this after.

Video tutorial:

https://drive.google.com/file/d/1MOrus8KXcAF8N14hp53kotbFZsNdOELB/view?usp=sharing